EP 3871832 B1 20240313 - THERMAL DISPLACEMENT CORRECTION METHOD FOR A MACHINE TOOL
Title (en)
THERMAL DISPLACEMENT CORRECTION METHOD FOR A MACHINE TOOL
Title (de)
VERFAHREN ZUR KORREKTUR DER THERMISCHEN VERLAGERUNG FÜR EINE WERKZEUGMASCHINE
Title (fr)
PROCÉDÉ DE CORRECTION DE DÉPLACEMENT THERMIQUE POUR UNE MACHINE-OUTIL
Publication
Application
Priority
- JP 2018205521 A 20181031
- JP 2019039592 W 20191008
Abstract (en)
[origin: EP3871832A1] Provided is a thermal displacement correction method using a machine learning method but making it possible to, on a user side, calculate a thermal displacement amount appropriate to a machine tool of the user and correct the thermal displacement. In a machine tool on a target user side, a thermal displacement amount between workpiece and tool corresponding to a temperature at a preset measurement point is calculated based on a parameter defining a relation between the temperature and the thermal displacement amount, and a positioning position for workpiece and tool is corrected in accordance with the calculated thermal displacement amount. On a manufacturer side, operational status information of the machine tool on the target user side is obtained, an operational status identical to the obtained operational status on the target user side is reproduced with a machine tool of a same type as the machine tool on the target user side based on the obtained operational status information, a temperature at a measurement point identical to the measurement point on the machine tool on the target user side and a thermal displacement amount between workpiece and tool are measured during reproduction, and the parameter is calculated by machine learning based on the measured temperature and thermal displacement amount. The parameter in the machine tool on the target user side is updated with the calculated parameter.
IPC 8 full level
G05B 19/404 (2006.01); G05B 13/02 (2006.01); G06N 3/084 (2023.01)
CPC (source: EP US)
B23Q 15/18 (2013.01 - US); G05B 13/0265 (2013.01 - US); G05B 13/027 (2013.01 - EP); G05B 19/404 (2013.01 - EP US); G06N 3/084 (2013.01 - EP); G05B 2219/33032 (2013.01 - EP); G05B 2219/33034 (2013.01 - EP); G05B 2219/33036 (2013.01 - EP); G05B 2219/37211 (2013.01 - EP); G05B 2219/37428 (2013.01 - EP); G05B 2219/49062 (2013.01 - EP); G05B 2219/49102 (2013.01 - EP); G05B 2219/49169 (2013.01 - EP); G05B 2219/49206 (2013.01 - EP); G05B 2219/49207 (2013.01 - US); G05B 2219/49219 (2013.01 - EP); G05B 2219/49307 (2013.01 - EP); G05B 2219/50333 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3871832 A1 20210901; EP 3871832 A4 20220727; EP 3871832 B1 20240313; CN 112996630 A 20210618; CN 112996630 B 20230103; JP 2020069597 A 20200507; JP 6890110 B2 20210618; US 11809156 B2 20231107; US 2021405608 A1 20211230; WO 2020090373 A1 20200507
DOCDB simple family (application)
EP 19879077 A 20191008; CN 201980072507 A 20191008; JP 2018205521 A 20181031; JP 2019039592 W 20191008; US 201917289867 A 20191008